21478014

素因数分解:

$2^1\times 3^3\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{109}}^1$

素因数の和:250

約数の個数: 64

約数和(自身を含む): 49896000

約数和(自身を除く): 28417986

約数列:

[1, 2, 3, 6, 9, 18, 27, 41, 54, 82, 89, 109, 123, 178, 218, 246, 267, 327, 369, 534, 654, 738, 801, 981, 1107, 1602, 1962, 2214, 2403, 2943, 3649, 4469, 4806, 5886, 7298, 8938, 9701, 10947, 13407, 19402, 21894, 26814, 29103, 32841, 40221, 58206, 65682, 80442, 87309, 98523, 120663, 174618, 197046, 241326, 261927, 397741, 523854, 795482, 1193223, 2386446, 3579669, 7159338, 10739007, 21478014]

約数ペア:

[(1, 21478014), (2, 10739007), (3, 7159338), (6, 3579669), (9, 2386446), (18, 1193223), (27, 795482), (41, 523854), (54, 397741), (82, 261927), (89, 241326), (109, 197046), (123, 174618), (178, 120663), (218, 98523), (246, 87309), (267, 80442), (327, 65682), (369, 58206), (534, 40221), (654, 32841), (738, 29103), (801, 26814), (981, 21894), (1107, 19402), (1602, 13407), (1962, 10947), (2214, 9701), (2403, 8938), (2943, 7298), (3649, 5886), (4469, 4806)]